Solar on your roof? (Score 1)

i live in the part of the midwest that just suffered a 6 day power outage due to ice and snow. this after a 6 day outage in july due to high winds. i was talking to my 11 year old child about the fact that if we had solar on our roof, we'd have heat and light, instead of living in a relative's basement until the juice comes back on. i thought the practical window for that was 7 to 12 years down the road. yet here you are doing it in california. info? links? source of cheap / efficient cells?